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calculate the fraction of atom sites that are vacant for lead atits melting temperature of 327oc 600k. assume anenergy
A compound is known to contain 52.17% carbon and 27.78% oxygen by mass. Each molecule contains two atoms of oxygen. What is the molar mass of this substance
If water had not been added to your initial product, what error in the percentage magnesium determined would have resulted(that is if the part of the product has been magnesium nitride)? Explain.
The terms SCOT, WCOT, & PLOT are frequently used to describe types of GC columns. Specifically how do these columns differ from "Packed" columns in their structure and function
at local coffee shop you purchase a cup of coffeebut at 98.4 degree centigrade it is too hot to drink.you add 23.0g of
The combustion of propane illustrated by the following reaction releases 2428 KJ per mole of reaction. A sample of propane is burned at 59 degrees celsius and 746 mm Hg. The process produces 39.7 L of CO2(g). How much heat was released?
Explain is the mass percent of a solution if 42.9 grams of aspirin is dissolved into 175mL of ethanol. Density of ethanol is 0.789 g/mL
the equilibrium mixture is compressed at constant temperature to a volume of 6.21 L? [NH3] = [H2S]=
what is the enthalpy of vaporization of acetone ch3coch3 at its normal boiling point of 56.2?c? the entropy of
Write a balanced net ionic equation for the reaction of KMnO4 with the saturated solution of CdC2O4 in diluted H2SO4. The major products are Mn2+ and CO1
How many moles of N2 molecules are present in a 0.151 L sample of dry air at 0.0356 atm and 23.8 °C ? (The mole fraction of N2 = moles of N2 / total moles of dry air = 0.7809.)
Problem- the value for Ksp for Mn(OH)2 is 1.6x10^-4M. Calculate the molar solubility of Mn(OH)2 in a solution that contains 0.020M NaOH.
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